在本文中,我们描述了一种用于锂离子电池的新型蒽基负极材料的设计和克级合成。基于合理的设计,具有强大的电子离域能力和长的共轭长度,该材料迄今为止具有共轭羧酸锂无法比拟的功率性能,在20 Li + / h的循环速率下显示出150 mAh g-1的重量容量( 10 C),无需任何电极工程。另外,对于设计,完全还原相的部分溶解度也可以解释以低速和高速获得的电化学性能。
Diamine Compound Having Phosphorylcholine Group, Polymer Thereof, and Process for Producing the Polymer
申请人:Nagase Yu
公开号:US20100036081A1
公开(公告)日:2010-02-11
Highly polymerizable diamine compounds having a phosphorylcholine group are disclosed. High-molecular weight polymers are obtained from the highly polymerizable diamine compound having a phosphorylcholine group as a monomer, and the polymers have improved mechanical strength, water resistance and heat resistance while maintaining excellent biocompatibility and processability of MPC polymers. Processes for producing the polymers are disclosed. The diamine compounds having a phosphorylcholine group are represented by Formula (I). The polymers contain at least 1 mol % of a specific structural unit with a phosphorylcholine group represented by Formula (II) and have a number average molecular weight of not less than 5,000. In the processes, the diamine compound is used as a monomer.
Design, synthesis and characterization of self-assembled As2L3 and Sb2L3 cryptands
作者:Sean A. Fontenot、Virginia M. Cangelosi、Melanie A. W. Pitt、Aaron C. Sather、Lev N. Zakharov、Orion B. Berryman、Darren W. Johnson
DOI:10.1039/c1dt10817d
日期:——
The syntheses and X-ray crystal structures of six new self-assembled supramolecular As and Sb-containing cryptands are described. Analysis in the context of previously reported As2L3 and Sb2L3 cryptands reveals that small differences in ligand geometries result in significant differences in the helicity of the complexes and the stereochemistry of the metal coordination within the assembled complexes
描述了六个新的自组装的超分子含As和Sb的配体的合成和X射线晶体结构。在先前报道的As 2 L 3和Sb 2 L 3配体的背景下进行的分析表明,配体几何形状的细微差异会导致复合物的螺旋度和组装的复合物中金属配位的立体化学存在显着差异。另外,描述了一种新的合成路线,该路线涉及将反应物暴露于真空中以帮助促进自组装。
Enantioselective [4+4] photodimerization of anthracene-2,6-dicarboxylic acid mediated by a C<sub>2</sub>-symmetric chiral template
作者:Mark M. Maturi、Gaku Fukuhara、Koichiro Tanaka、Yuko Kawanami、Tadashi Mori、Yoshihisa Inoue、Thorsten Bach
DOI:10.1039/c5cc09107a
日期:——
A chiral template was shown to bind the title compound by hydrogen bonding resulting in enantioselectivities of up to 55% enantiomeric excess (ee) in the [4+4] anthracene photodimerization.
2,6-anthracenedicarboxylic acids to reveal the configurational and molecular orbital origin of the Cotton effects observed, and unambiguously determined the absoluteconfigurations of these chiral cyclodimers. The present results allow us to directly correlate the enantiotopic face-selectivity upon photocyclodimerization with the absoluteconfiguration of the cyclodimer derived therefrom and also to
[EN] PRODUCTION OF AROMATIC CARBOXYLIC ACIDS<br/>[FR] PRODUCTION D'ACIDES CARBOXYLIQUES AROMATIQUES
申请人:DU PONT
公开号:WO2002006201A1
公开(公告)日:2002-01-24
A process for the production of an aromatic carboxylic acid comprising contacting in the presence of a catalyst, within a continuous flow reactor, one or more precursors of the aromatic carboxylic acid with an oxidant, such contact being effected with said precursor(s) and the oxidant in an aqueous solvent comprising water under supercritical conditions or near supercritical conditions close to the supercritical point such that said one or more precursors, oxidant and aqueous solvent constitute a substantially single homogeneous phase in the reaction zone, wherein the contact of at least part of said precursor with said oxidant is contemporaneous with contact of said catalyst with at least part of said oxidant.